Home / 10,445.18-15,661.51-4,899.74

Finding the Fourth Proportional to 10,445.18, 15,661.51 and 4,899.74

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Solution

The fourth proportional to 10,445.18, 15,661.51 and 4,899.74 is: 7,346.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.18 : 15,661.51 = 4,899.74 : x
  2. Step 2: Convert to fraction form
    10,445.18/15,661.51 = 4,899.74/x
  3. Step 3: Cross multiply
    10,445.18x = 15,661.51 × 4,899.74
  4. Step 4: Simplify right side
    10,445.18x = 76,737,236.45
  5. Step 5: Solve for x
    x = 76,737,236.45/10,445.18
  6. Step 6: Final answer
    x = 7,346.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.